Improvement in gas-carbureting machines



1.1,. MARTIN;

Gas Garburetting Machines. N0.\5 8,802 A Y `Patented1an.19, 1875.

UNITED STATES ATE T THOMAS J. MARTIN, vOF PHILADELPHIA, PENNSYLVANIA,ASSIGNOR OF TWO-THIRDS HIS RIGHT TO DAVID W. STUART, OF SAME PLACE, ANDWILLIAM E. PRALL, OF WASHINGTON, D. C.

IMPROVEMENT IN GAS-CARBURETING MACHINES.

Spec'ication forming part of Letters Patent Nor.il58,802, dated January19, 1875; application Iiled Y December 4, 1874.

' tion:

The object of my invention is to facilitate the carbureting of commonilluminating coalgas by devices which, without surchargin g the gas,shall permit its perfect impregnation with the vapor of a rich liquidhydrocarbon contained in a simple receiver; to facilitate the lling ofthe receiver to the proper level without excess; and to collect andautomatically discharge the moisture of condensation in theeduction-pipe leading from the carbureter.

My said invention consists in distributing the gaswithin the receiver ofthe carbureting apparatus by means of two or more annularsupply-chambers, formed about the inner wall of the receiver, iu suchmanner as to prevent any clogging of the induction-openings by thepressure ofthe absorbent material placed in the receiver, and arrangedone above the other at proper intervals, and connected with the gas-mainor induction-pipe by branch pipes controlled by cocks, so that when thereceiver is first charged the gas may be admitted from the uppermostdistributing-chamber alone, until the hydrocarbon held by the absorbentmaterial above said distributing-chamber has been fully taken up,whereupon the gas may be admitted from the next lower distributin g-chamber, thus avoidin g the surcharging of the gas consequent upon itspassage through too large a body of the saturated absorbent material,and yet at the same time retaining the advantages attending the use of alarge receiver for such material. y

In the accompanying drawing, A is a strong receiver, properlyconstructed of metal or other material, to resist the highest pressureof gas to be used. B is a feed-aperture, closed by a suitable plug orcock. U is a waste cock, placed at or near the bottom of the receiver. DD are distributing-chambers, constructed each of a flaring imperforateflange, c, arranged and secured to project downward at the tube.

an angle from the inner wall or surface of the receiver A, and combinedwith a second lower perforated iiange, f. placed beneath it, to projectupward from the surface of the receiver at a suitable angle to strikeagainst the edge of said upper imperforate iiange, e, to which it may beunited. Each chamber D Dl encircles the receiver, as illustrated in thedrawing. G is the induction, and H the eduction, pipe of the apparatus,for supplying gas to, and delivering it from, the carbureter. Theinduction-pipe is connected with each of the distributing-chambers D Dby means of branch pipes G G', each controlled by suitable cocks z' i. Kis a bent tube, one end of which is secured to the lowermost point ofthe eductionpipe H of the apparatus, and its other end carried nearly tothe level of the lirst and left open. This bent tube K is made of suchlength as that, when iilled with water, the weight ot' water in theouter open arm of the tube will suffice to resist the pressure of gaswithin the pipe H, while at the same time the Water collecting in theinner end or arm of the tube will, in seeking its level, escape and bedischarged automatically from said open end ot' M is a small tubeinserted through the top of the receiver A, and which extends downwardtherein to a point below the top of the lowermost distributing-chamber,D, of the carbureter. To preventsaid lower end from clogging, the tubemay be so placed as that it shall terminate within this lowermostchamber, as illustrated in the drawing. The upper outer end of thevent-tube M is closed by a suitable cock or plug. v

In the operation of this my improved carbureter the receiver A is firstfilled with sawdust, or other equivalent absorbent, cellular, or tibrousmaterial. The peculiar formation and arrangement of the annulardistributing. chambers D D will prevent this absorbent filling from nding its way from the receiver into said chambers. The receiver is then snpplied with gasoline or other equivalent rich and light hydrocarbon oil,which is t0 be poured into the receiver through the feed-v aperture Buntil all escape ot' air or gas for this purpose) ceases, indicatingthat the liquid has attained the level of the lower end ot' said tube.This automatic indication of the proper level of the liquid supplied tothe carbureter permits it to be iilled Wholly in the dark With entireexactness, which is a great convenience "where the apparatus is placedin cellars and like situations, and obviates the dangerous necessity ofusing a light. The trap-tube K being now filled with water, thecarbureter is ready for use. Gas is admitted first into the uppermostchamber, D, so that it shall pass only through the upper stratum orlayer of saturated material; but so soo'n as it is no longersufficiently enriched by its admission through this channel,the cockcontrolling the passage into the next lower chamber, D, is opened, andthereafterinto the nextlower one (it` there be more than two) as thesupply of hydrocarbon is gradually taken up, thus insuring more entireuniformity in the operation of carburetin g the gas, from the time thereceiver is charged until it is exhausted, than has heretofore beenattained Without very complicated devices. The gas, entering eitherchamber D, escapes therefrom under pressure through the perforations inthe lower ange, f, and is thus evenly distributed into the receiver topermeate the saturated material therein. Passing through this material,the gas becomes charged and enriched by the vapor of the hydrocarbon,and is conducted away through the eductionpipe H, as described. Allexcess of moisture in the gas, which may condense in the pipe H, Willtind its way into the tube K, and be automatically discharged from itsopen end, an escape ot' the gas through the same channel being preventedby the superior gravity of the fluid column in the outer arm of thetube.

I claim'as my invention- The receiver A, provided with annulardistributing-chambers D D, arranged about the sides ofthe receiver atdifferent levels, in combination with the branch pipes G G of theinduction-pipe G, substantially as and for the purpose herein set forth.

THOS. J. MARTIN.

Witnesses:

W. E. PRALL, DW. STUART.

